The Allstar Performance Weatherproof 30-Amp Relay with Pigtail (P/N ALL76188) is a heavy-duty, sealed automotive relay kit engineered for high-demand electrical components in motorsport, off-road, and classic vehicle environments. Designed to protect sensitive dashboard switches, it uses a low-current trigger signal to switch high-amp devices safely and reliably.
Product Overview & Performance
High-draw electrical accessories—such as electric cooling fans, high-pressure fuel pumps, electric water pumps, and auxiliary light bars—can draw 15 to 30 continuous amps. Running this current directly through a standard dash switch leads to voltage drop, overheating, and switch failure.
The ALL76188 relay acts as a high-current remote switch, drawing power directly from the battery to the component through heavy-gauge wiring while using minimal current through your control switch. The fully sealed housing and gasketed pigtail socket isolate internal contacts from water, mud, engine oil, and washdown spray, preventing corrosion and short circuits.
Key Features & Design Highlights
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Weatherproof Sealed Construction: Fully encapsulated relay housing with a rubberized base seal keeps moisture, dust, and grime off internal contacts.
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Pre-Wired Pigtail Harness: Includes a color-coded wiring connector with generous wire leads to simplify installation and wiring splices.
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30-Amp Continuous Duty: Rated to handle up to 30 amps continuous load for demanding 12V DC automotive accessories.
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Integrated Mounting Bracket: Built-in tab allows secure mounting to firewall, inner fender, or engine bay chassis tabs.
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Complete Kit: Includes relay, socket pigtail harness, and basic wiring instructions.
Technical Specification Matrix
| Feature / Metric |
Technical Specification Detail |
| Manufacturer & Part # |
Allstar Performance — P/N: ALL76188 |
| Amperage Rating |
30 Amps Max Continuous Load |
| Operating Voltage |
12V DC System |
| Relay Style |
Weatherproof Sealed Standard Automotive Relay |
| Connector Type |
Pre-Wired Socket Pigtail Harness |
| Common Applications |
Electric Fuel Pumps, Single Cooling Fans, Water Pumps, Nitrous Solenoids, Off-Road Lights |
Basic Wiring Pinout Guide
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Pin 30: High-amp 12V power input (fused connection directly from battery/power stud).
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Pin 87: High-amp 12V power output (runs directly to positive terminal on fuel pump, fan, etc.).
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Pin 86: Low-amp relay coil trigger input (switched 12V signal from toggle switch, ignition switch, or ECU).
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Pin 85: Relay coil ground (switched or chassis ground).
